<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Hack Application</title>
<style type="text/css">
body{
	background: #E4E4E6;
}
.main{
	margin: auto;
	width:315px;
	margin-top:100px;
	font-size:17px;
	font-family:"黑体";
}
.back{
	margin-top:10px;
}
</style>
</head>
<body>
	<div class="main">
		Sorry,<br/>
		the page you requested was <b>not found.</b>
		<div class="back" align="right">
			<a href="javascript:window.history.go(-1)">Go Back</a>
		</div>
	</div>
</body>
</html>